Unloading device.



' I. B; LIBBEY.

UNLOADING DEVICE. ABPLIGATloN FILED JULY 16, 1909.

Patented Feb. 25, 1913.

I. B. LIBBBY.

UNLOADING DEVICE. APPLICATION FILED'JULY 16, 1909.

Patented Feb. 25, 1913.

I nuntoz Imm/a. Lvlbey ISAIAH IB. LIBBEY, CHARLOTTESVILLE, VIRGINIA.

Uit-LOADING DEVICE.'

specification of Letters Patent. Patented Feb. 25, 1913.

Application led July 16, 1909. Serial No. 508,051.

To all whom it may concern Be it known that I, ISAIAH B. LIBBEY, acitizen of the United States, residing at Charlottesville, in the countyof Albemarle and State of Virginia, have invented new ,I and usefulImprovements in Unloading Devices, of which the following is aspecification.

y This invention relates to unloading devices, theprimary object of thesame being to provide simple and effective means whereby coal oi thelike may be delivered from one vessel to another vessel.-

With the above object in view the invention resides in the novelconstruction of elements and their arrangementI in operative-,combination as will hereinafter be fully described and claimed.

In the drawings, accompanying this specification, Figure 1 is a sideelevation of theapparatus inapplied position upon a vessel, parts oftheapparatus, as well as the vessel being iny section, the conveyer leg 6being removed. Fig. 2 is a longitudinal sectional view takenapproximately on the line 2 2 of Figi. Fig is an enlarged detailelevation, approximately on the line 3 3 of Fig. 2, looking toward thedirection of the arrows, a portion/of the vessel, being shown insec-tion and the bucket conveyer being removed. Fig. 4 is a t-ransversesectional viewltaken upon `the line 4 4 of Fig. l. Fig. 5 is a detailsectional view taken approximately upon the line 5 5 of Fig. lV andillustrating the spline or key carried by the beveled toothed wheel 35engaging withinthe longitudinal channel provided upon the shaft 36,whereby the said shaft is allowed to travel longitudinally7 through thebore ofthe said toothed wheel.

l Before proceeding with the description of the details of theapparatus, it may be here stated that while the said apparatus ,will bealluded to in connection with a collier" or other vessel, the saidapparatus is not to be restricted as applicable only to a collier orvessel, as the said apparatus mayv be employed with equal success uponany suitable support. n

In the drawings, the numeral l desiglnates a collier within the hold ofwhich mayv be arranged a suitable screw conveyor 3, the latter beingprovided with a suitable casing- 4. The casing 4 may have an open top,the latter being fully 01" partially closed through the medium ofremovable slats 5. Any suitable mechanism may be employed for operatingthe conveyor, the same not forming a part of the present invention.

The coiiveyer screw 2 has its casing 4 communicating with a bucketcoiiveyer leg 6, the said leg being provided with suitable rollers 'Kover which passes an endless belt 8 carrying the buckets 9. The. leg 6extends above tlie deck of the collier 1 and is provided with a.suitable mouth which overlies the hopper 18 of my improved apparatus.The! buckets 9 may be operated in any desired manner, the said bucketslas well as the leg G therefor being of the con- `ventional forni andbeing merely illustrated as a means whereby, when taken in connectionwith the screw 3, the coal or other material may be raised from the holdof the vessel and delivered to the hopper 18.

The hopper 1S is of a tapering contour and is centrally provided with'an outlet mouth 1.9.

The numeral 24 designates a hollow meniber which is preferablyconeshaped and which may be connected to the hopper in any suitable ordesired manner. The hollow member 24 surrounds the mouth`19 of thehopper 18, and the lower and reduced portion of the said member 24 isprovided with an outwardly extending annular flange 25.

The numeral 27 designates a tubular member which has itsI upperextremity formed with a substantially cross-sectionally L-shaped annularflange or head, the same being designated by the numeral 26 and adaptedto receive the flange 25 of the hollow member 24. The flange 25 isretained upon its seat through the medium of 'a suitable disk or ring 26which overlies the said flange and which is connected with the off-setportion of the top of the L-shaped head provided for the tubular member27. The deck of the vessel 1 is provided with an elongated openingthrough which the tubular member extends, and the lower portion of thesaid tubular lmember is preferably closed, through the medium' of asuitable cap, as illustrated in Figs. l and 2 of the drawings. The s'aidtubular member, adjacent its closed end is provided with oppositelyarranged trunnions 27, the latter adapted to be received withinbearingsA provided upon suitable standards 28 and 29,

outlet mouth, while the opposite end of the said casing is preferablyclosed/to provide a vbearing for one end of the shaft or trunnion of thesaidspiral 21, and .connected with this end of the shaft is a toothedwheel 40, and whereby the said spiral 21 is re volved in a manner Awhichwill hereinafter be fully set forth. Thevtop of the outletconveyereasing is provided with a plurality of spaced openings,'and surroundingthe .edges ofthe casing provided by the said openings arecrosssectionally L-shaped members, forming ways 23 for sliding doors 22;Any one of these doors is adapted to be slid wit-hinits waysto uncoverwith respective openings in the conveyer casing when'the said casing ismoved through the openings provided by the hollow 4member 24, so thatmaterial may be delivered Within the conveyer casing through the mouth19 ofthe hopper 18. The manner in which the said casing is moved Willpres-- ently be set forth. The casing 20' may be provided withlongitudinally extending re Vinforeing plates 75, the same beingarranged upon both the top and bottom of the said casing, and the casingis further provided upon its opposite sides with longitudinallyextending combined' brace and supportingV plates 76. The plates 7 6 arepreferably. constructed of L-irons, and the said plates rest uponbearing brackets 7 8 arranged within the hollow member 24, as clearlyillustrated in Fig. 2 of the "drawings The casing 20, adjacent itsoutlet mouth is provided with a suitable eye 79, the said eye adapted toreceive a suspending cable 80, the free end of which' latter may beconnected with a boom or similar device.

Secured upon the ing 2O and terminating at a suitable distance away fromthe outlet mouth thereof, is a longitudinally extending rack bar 41, the-teeth Vof which bein engaged by a toothed wheel 43 provide upon asuitable shaft 42 which is arranged transversely of and mounted inbearings in the hollow coneshaped member 24. The shaft 42 has one of itsends extending a suitable distance beyond the said hollow member 24, andthis extending portion is off-set orotherwise provided with a handle44,whe'reby the toothed wheel may be vrotated to slide the casing 20either toward or away from the side or end of the vessel or support 1.

The numerals 37 and 3S designate bearunder face of the cas-r ingscarried bysuitable brackets, the same being arranged adjacent the endsof the rack bar 41, and the'said bearings are adaptedv to receive ashaft 36. This shaft 36 is preferably arranged directly below the rackbar 41. The inner .and lower closed portion lor wall of the hollowmember 24 Ais provided with a. suitable bracket 81,- the said brackethaving its vertical arm provided with an opening through which the shaft36 extends, 7 5 and arranged upon the said shaft 36 and mounted forrotation u on the bracket 81 in any desired manner, is a'beveled toothedwheel 35. The shaft 36 is provided with a longitudinally extendinggroove or channel 82, and the toothed wheel 35 has its bore providedwitha spline or feather 42 which engages within the saidgroove 82, andwhereby the shaft 36 may be free to move j through the bore of the saidbeveled toothed g5 wheel 35 when the casing 2O is moved longitudinallythrough the medium of its rack bar and the toothed wheel 43. Meshingwith the toothed wheel 35 is la similar beveled toothed wheel 34 carriedupon one end of a 90 shaft 35 which is centrally arranged withinthetubular member 27 and which finds bearings in openings provided-within the bottom of the hollow member 24 as well as through one arm ofthe bracket 8 1 and through an 9,5 opening provided in the removable capof the said tubular member 27. The opposite end of this shaft 33, whichprojects through thel cap of the tubular member 27 is also provided-witha beveled toothed gear, 32, the same meshing with a similar toothedwheel 31 which is proi ided upon a shaft 30 having a bearing in thestandard 28, and connected with any suitable source of power,

Secured to the hollow member 24 andar- 105 the disk 26 is a ring havingits upper face provided with teeth, and these teeth are4 adapted to beengaged by a toothed wheel carried upon a shaft 50 which is mounted 110within the bearing provided by a bracket The shaftI 50 is bent toprovide an off-set handle 51, and by this arrangement it will be notedthat means are provided whereby ranged directly above member 54, thesame the hopper, hollow member 24, casing 20, as.

well as the parts carried thereby may be rotated or revolved around thetubular mem-` ber 27.

Arranged upon the top or deck of the Vcollier 1 adjacent thelongitudinal walls-120 formed by the opening'. through which the tubularmember 27- passes, are a pair of arcuate toothed bars 45, the said barsbeing positioned adjacent the opposite sides of the said tubular member27. These toothed racks 45 are struck-at anaic from the axial center ofthe shaft 30, and the teeth of the said racks are adapted to be engagedby toothed wheels 48 providedupon a shaft 46 which extends throughsuitable openings 1 30 v remainder of the device forming bearings in the-as to raise or lower the 20 as desired. v

The shaft 36 extends a suitable distance l through itsbearings 38 and`the said extendv the'splral conveyor ,21.

-ed portion is provided with a toothed wheel 39, the said wheel meshingwith tooth Wheel 40 provided up v,n the trunnion or sha-ft'of By thisarrangement it will benoted that when thev ower shaft is. in motion, thesaid spira v oonveyer -21 will be rotated within its casing,-

through the medium -of the tooth wheels 34, 35, 39, and 4o.

The L-shaped top or ring 26 ofthe tubuw lar member 27 is provided with aspring pressed pawl 83, the same'adapted to engage between the teeth ofthe wheel 43 to secure l the apparatus in a proper position with thewhat I claim is:

arcuate toothed bars or racks 4:5.

From the above description, taken in connection with the drawings, ltheconstruction of the device, .as well as the operation and advantagesthereof, will it is thought be perfectly apparent to those skilled inthe art, to' which such inventions .are pertaining, without furtherdetaildescription and Having thus described the invention,

1. In a device of the class described, a hopper, a hollow memberconnected to the hopper and in communication therewith and provided withalining openings, a conveyer casing having a portion arranged withinsaid hollow member and movable through the openings therein, beingprovided with a plurality of openings adapted for communication with theJfor the lower end of -said hollow said casing hopper, means'for movingsaid' conveyer casing relatively tothe hopper and hollow member andthrough the openings within the latter, a conveyer within said casing,and means -for driving said conveyer.

2. In an apparatus of the class described, a conveyer casing having aplurality of spaced openings, a conveyer within the casing, a hopper,means adapted to move said casing relatively to the hopper to establishcommunication between the former and the :latter through one of theopenings within thecasing, a hollow member connected with )the hopperand having openings through which the conveyer casing passes, asupportmember, and means adapted to revolve said hollow member upon itssupport.

In an apparatus of the class described, a hopper, a hollow memberconnected to the hoppenend provided with alining openings, a convbyercasing provided with openings and having 'a portion arranged `withinsaid hollow member and in communication with said hopper, a 'tubularmember adapted to Support said hollow member,

a shaft'within said tubular member, a shaft arranged at right vangles tothe'rsbmentioned shaft, driving connections 'between said shafts, aconveyer within said conveyer casing, connections between the last-namedshaft and the saidl conveyer to drive the latter, means for driving the-rst-mentioned shaft, the connections between v the said shafts beingmovable whereby motion may be transmitted to the cdnveyer independentlyvofthe movement of the latter with the hopper.

In .testimony whereof .I affix my signature in presence of twowitnesses.

V`Wi`tnesseszV v .W. VSmil: BURNLEY,

W. W. NoRvELL.

Copesof this'patent may be obtained for ve centseaeh, by addressing thecommissioner of Patents. i i v Washington, 1)..0.

vIsailian B. LIBBEY.

7o' means operable to rotate said hollow member relatively to saidtubular member,

